124 lines
3.3 KiB
Go
124 lines
3.3 KiB
Go
// Copyright 2017-2025 WIT.COM Inc. All rights reserved.
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// Use of this source code is governed by the GPL 3.0
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package main
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import (
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"github.com/awesome-gocui/gocui"
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"go.wit.com/widget"
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)
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/*
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gocui defines the offset like this:
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width -> increases to the right
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---------------------------------- hieght
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| H = 1 | increases
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| | |
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| W = 1 W = 18 | |
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| | v
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| H = 5 | downwards
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-------------------------------------
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*/
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// change over to this name
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// returns all the widgets under (X,H) that are visible
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func findByXY(w int, h int) []*guiWidget {
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rootW := me.treeRoot.TK.(*guiWidget)
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// this searches the binary tree recursively (function is right below)
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return findByXYreal(rootW, w, h)
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}
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// this checks a widget to see if it is under (W,H), then checks the widget's children
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// anything that matches is passed back as an array of widgets
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func findByXYreal(widget *guiWidget, w int, h int) []*guiWidget {
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var widgets []*guiWidget
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if !widget.Visible() {
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// ignore widgets that are not visible
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} else {
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// check the location to see if this is under (W,H)
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// if it is, return this widget
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if (widget.gocuiSize.w0 <= w) && (w <= widget.gocuiSize.w1) &&
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(widget.gocuiSize.h0 <= h) && (h <= widget.gocuiSize.h1) {
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widgets = append(widgets, widget)
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// log.Log(GOCUI, "findByXY() found", widget.node.WidgetType, w, h)
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}
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}
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// search through the children widgets in the binary tree
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for _, child := range widget.children {
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widgets = append(widgets, findByXYreal(child, w, h)...)
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}
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return widgets
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}
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// returns the "highest priority widget under the mouse
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func findUnderMouse() *guiWidget {
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w, h := me.baseGui.MousePosition()
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widgets := findByXY(w, h)
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// search through all the widgets that were below the mouse click
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var found *guiWidget
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for _, w := range widgets {
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// prioritize window buttons. This means if some code covers
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// up the window widgets, then it will ignore everything else
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// and allow the user (hopefully) to redraw or switch windows
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// TODO: display the window widgets on top
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if w.node.WidgetType == widget.Window {
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return w
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}
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}
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// return anything else that is interactive
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for _, w := range widgets {
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if w.node.WidgetType == widget.Button {
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return w
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}
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if w.node.WidgetType == widget.Combobox {
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return w
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}
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if w.node.WidgetType == widget.Checkbox {
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return w
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}
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w.dumpWidget("findUnderMouse() found something unknown")
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found = w
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}
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// maybe something else was found
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return found
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}
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// panics. todo: fix ctrl-mouse click?
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// find the widget under the mouse click
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func ctrlDown(g *gocui.Gui, v *gocui.View) error {
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var found *guiWidget
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// var widgets []*node
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// var f func (n *node)
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found = findUnderMouse()
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if me.ctrlDown == nil {
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setupCtrlDownWidget()
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var tk *guiWidget
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tk = me.ctrlDown.TK.(*guiWidget)
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tk.labelN = found.String()
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tk.cuiName = "ctrlDown"
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// me.ctrlDown.parent = me.rootNode
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}
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var tk *guiWidget
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tk = me.ctrlDown.TK.(*guiWidget)
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if found == nil {
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found = me.treeRoot.TK.(*guiWidget)
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}
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tk.labelN = found.String()
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newR := found.realGocuiSize()
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tk.gocuiSize.w0 = newR.w0
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tk.gocuiSize.h0 = newR.h0
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tk.gocuiSize.w1 = newR.w1
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tk.gocuiSize.h1 = newR.h1
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return nil
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}
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